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GL4 and/or GL5 #4753127
05/10/18 02:55 PM
05/10/18 02:55 PM
Joined: Apr 2018
Posts: 82
Azerbaijan
NICAT Offline OP
NICAT  Offline OP
Joined: Apr 2018
Posts: 82
Azerbaijan
Hi.
Car's has GM (Opel) F16 5 speed synchronized manual gearbox.
Since it is quite an old gearbox, i couldn't find any official information about the correct fluid type.
But many says it should be 75w-90 GL-4.
My friend is Motul's dealer here. And on the bottles of gearbox oil, i have seen API STANDARDS as API GL-4/GL-5
This is a little confusing. I coudln't find any Motul product with GL-4 API Standart alone.
If GL-4 and GL-5 is something different, how an oil can meet both standarts ?
So is it just something like All-Season Tires? (Which is not the best for summer and not the best for winter. But can be used in any season)
Should i buy prefer GL-4 over GL4/GL5?
Regards

Re: GL4 and/or GL5 [Re: NICAT] #4753134
05/10/18 03:04 PM
05/10/18 03:04 PM
Joined: Feb 2014
Posts: 2,304
Kansan,1911 45ACP fan
Marco620 Online happy
Marco620  Online Happy
Joined: Feb 2014
Posts: 2,304
Kansan,1911 45ACP fan
Try redline mtl or mt90


15' Civic R18Z1 189k.0w20 Redline/Archoil9200,Eibach,Tanabe&Tein Suspension/Borla Exhaust/XG7317
Right to work state proud.
Re: GL4 and/or GL5 [Re: NICAT] #4753136
05/10/18 03:05 PM
05/10/18 03:05 PM
Joined: Feb 2014
Posts: 2,304
Kansan,1911 45ACP fan
Marco620 Online happy
Marco620  Online Happy
Joined: Feb 2014
Posts: 2,304
Kansan,1911 45ACP fan
Front wheel drive and synched...GL4! : )


15' Civic R18Z1 189k.0w20 Redline/Archoil9200,Eibach,Tanabe&Tein Suspension/Borla Exhaust/XG7317
Right to work state proud.
Re: GL4 and/or GL5 [Re: NICAT] #4753209
05/10/18 04:45 PM
05/10/18 04:45 PM
Joined: Jun 2008
Posts: 172
Texas
SargeBB Offline
SargeBB  Offline
Joined: Jun 2008
Posts: 172
Texas
I would not use the GL4/Gl5 combination. Both Amsoil & Redline (and a few others) produce a GL4 gear oil without the GL5 added on. That's what I'd use for manual transmission...and I believe of the 2 aforementioned products, you'll find most people use the Redline MT90, which is SAE 75W-90.

Re: GL4 and/or GL5 [Re: NICAT] #4753250
05/10/18 05:36 PM
05/10/18 05:36 PM
Joined: Aug 2003
Posts: 12,964
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 12,964
NE,Ohio
unless you need a GL-5 for your application (such as Subaru or Porsche)

I would skip dual rated gear oil and get a GL-4 only.

Redline has several options available in gl-4 with different viscosity.


2019 Jeep Cherokee Trailhawk 2.0T
Re: GL4 and/or GL5 [Re: NICAT] #4753262
05/10/18 05:44 PM
05/10/18 05:44 PM
Joined: Jun 2013
Posts: 1,720
Virginia
mattwithcats Offline
mattwithcats  Offline
Joined: Jun 2013
Posts: 1,720
Virginia
I am giving Mobil 1 Delvac 50 a try in my GL-4 rated manual tranny...

https://www.mobil.com/English-US/Commerc...ission-Fluid-50


2009 Smart Pure
Pennzoil Platinum Euro 0W-40, Purolator Synthetic PSL 14610, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)
Re: GL4 and/or GL5 [Re: NICAT] #4753273
05/10/18 05:59 PM
05/10/18 05:59 PM
Joined: Dec 2006
Posts: 18,816
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 18,816
Dallas,Tx USA
Redline MT-90


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: GL4 and/or GL5 [Re: NICAT] #4753284
05/10/18 06:10 PM
05/10/18 06:10 PM
Joined: Mar 2008
Posts: 7,011
USA
slacktide_bitog Online content
slacktide_bitog  Online Content
Joined: Mar 2008
Posts: 7,011
USA
Liqui Moly #20012

Re: GL4 and/or GL5 [Re: NICAT] #4753322
05/10/18 06:44 PM
05/10/18 06:44 PM
Joined: Sep 2015
Posts: 2,328
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,328
Malaysia
Motul GL4/GL5 would work well, if not better in components longevity.

Re: GL4 and/or GL5 [Re: NICAT] #4753353
05/10/18 07:09 PM
05/10/18 07:09 PM
Joined: Apr 2018
Posts: 82
Azerbaijan
NICAT Offline OP
NICAT  Offline OP
Joined: Apr 2018
Posts: 82
Azerbaijan
Thanks for replies.
In my country, unfortunately there are German and Russian oil brands.(Except Motul)
Liqui Moly #20012 is also specified as GL4+ (GL4/GL5)

Last edited by NICAT; 05/10/18 07:12 PM.
Re: GL4 and/or GL5 [Re: NICAT] #4753475
05/10/18 08:41 PM
05/10/18 08:41 PM
Joined: May 2015
Posts: 915
Frogland / Brittany
Popsy Offline
Popsy  Offline
Joined: May 2015
Posts: 915
Frogland / Brittany
Motul Motylgear 75W90 will probably do the job. Or Castol Syntrans Multivehicle..or even Castrol Syntrans Transaxle. My favorite is the last one, it's a GL4+ but it should do ok in your GL4 application.


96 Barchetta, Motul 300V 5W40 | 98 Barchetta, Quartz 9000 energy 5W40
05 Forfour 95, SHU 0W40 (gf's car) | 10 Colt Ralliart, 300V 0W40
Re: GL4 and/or GL5 [Re: NICAT] #4753588
05/10/18 10:27 PM
05/10/18 10:27 PM
Joined: Mar 2006
Posts: 9,176
Pennsylbammyvania
dailydriver Offline
dailydriver  Offline
Joined: Mar 2006
Posts: 9,176
Pennsylbammyvania
Originally Posted By: NICAT
Thanks for replies.
In my country, unfortunately there are German and Russian oil brands.(Except Motul)
Liqui Moly #20012 is also specified as GL4+ (GL4/GL5)


Ravenol makes a few GL-4 ONLY manual gearbox/transaxle fluids, and I'm guessing that you CANNOT get the Red Line everyone on here is suggesting, there, correct?

Re: GL4 and/or GL5 [Re: dailydriver] #4753634
05/10/18 11:37 PM
05/10/18 11:37 PM
Joined: Apr 2018
Posts: 82
Azerbaijan
NICAT Offline OP
NICAT  Offline OP
Joined: Apr 2018
Posts: 82
Azerbaijan
Originally Posted By: dailydriver
Originally Posted By: NICAT
Thanks for replies.
In my country, unfortunately there are German and Russian oil brands.(Except Motul)
Liqui Moly #20012 is also specified as GL4+ (GL4/GL5)


Ravenol makes a few GL-4 ONLY manual gearbox/transaxle fluids, and I'm guessing that you CANNOT get the Red Line everyone on here is suggesting, there, correct?


No unfortunately.
But we have ravenol here.
Anyway, there are Russian giants Lukoil and Gazpromneft fluids which have GL4 Only fluids. But they are Semi-synthetic. Not Fully synthetic oils.

Re: GL4 and/or GL5 [Re: NICAT] #4753741
05/11/18 05:24 AM
05/11/18 05:24 AM
Joined: Oct 2014
Posts: 744
Pa, USA
NH73 Offline
NH73  Offline
Joined: Oct 2014
Posts: 744
Pa, USA
Doesn't GL-5 supersede GL-4?


2017 Toyota RAV4 Hybrid
2004 Ford Explorer Sport Trac
2012 Gravely ZT XL 48 w/ Kawasaki FR730
Re: GL4 and/or GL5 [Re: NH73] #4753767
05/11/18 06:11 AM
05/11/18 06:11 AM
Joined: Sep 2015
Posts: 2,328
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,328
Malaysia
I consider GL5 exceeds GL4 , other than (possible lack) of dedicated manual trans FM, which isn't part of GL4 (now obsolete) specifications anyway.
This so called dedicated FM package in GL4 behaves unpredictably in use, and behaves inconsistently in differing manual trans.

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